Stable hydraulic double-liquid grouting pump

Abstract

The utility model discloses a stable hydraulic double-liquid grouting pump which comprises a power motor, a multi-linkage gear pump, a reversing valve set, a piston oil cylinder and a suction and discharge grouting assembly. The reversing valve group is respectively connected with a plurality of liquid outlets of the multi-connected gear pump and the oil return tank through hydraulic oil pipes; the piston oil cylinder is connected with the reversing valve group through a hydraulic oil pipe, and oil quantity input of the piston oil cylinder is controlled through opening and closing of a loop electromagnetic valve in the reversing valve group; a piston rod of the piston oil cylinder is connected with two piston assemblies in the sucking, discharging and grouting assembly, and under the action of the piston oil cylinder, the grouting amount of the sucking, discharging and grouting assembly is controlled; an oil lubrication assembly is arranged between the piston oil cylinder and the suction, discharge and grouting assembly, and piston rods of two piston assemblies in the suction, discharge and grouting assembly are lubricated through the oil lubrication assembly. According to the stable hydraulic double-liquid grouting pump, through the combination of the multi-connected gear pump and the loop electromagnetic valves, stable output of the grouting pump, especially small and medium displacement grouting amount is achieved, and therefore the engineering quality of grouting operation is improved.

Description

Technical Field

[0001] This utility model relates to the field of dual-liquid grouting pump technology, and in particular to a stable hydraulic dual-liquid grouting pump. Background Technology

[0002] Currently, grouting pumps are used for grouting and water plugging, filling voids, and grouting consolidation of fractured rock layers in gas and coal mines, well construction and underground waterproofing projects, large railway and highway tunnels, reservoir dam foundations, and high-rise building foundations, both domestically and internationally.

[0003] However, existing grouting pumps usually control the grouting discharge rate by adjusting the motor speed. Under normal circumstances, existing grouting pumps can work stably when grouting with large or medium discharge rates. However, if small discharge rate grouting is required, adjusting the motor speed alone will result in two problems: first, the motor speed is limited by its performance; second, when the motor speed is low, the grouting output will be unstable, ultimately affecting the quality of the grouting. Utility Model Content

[0004] The purpose of this utility model is to provide a stable hydraulic dual-liquid grouting pump. By combining a multi-gear pump with a circuit solenoid valve, it can truly achieve a stable output of grouting pump, especially for small and medium displacement grouting, thereby improving the engineering quality of grouting operations.

[0005] To solve the above-mentioned technical problems, this utility model provides a stable hydraulic dual-liquid grouting pump, including a power motor, a multi-gear pump, a reversing valve group, a piston cylinder, and a suction and discharge grouting assembly;

[0006] The multi-gear pump has multiple outlets, and under the action of the power motor, the multiple outlets can achieve different discharge volumes.

[0007] The reversing valve group is connected to multiple outlets of the multi-gear pump and the return tank via hydraulic oil pipes.

[0008] The piston cylinder is connected to the reversing valve group via a hydraulic oil pipe, and the oil input to the piston cylinder is controlled by opening and closing the solenoid valve in the reversing valve group.

[0009] The piston rod of the piston cylinder is connected to two piston assemblies in the suction and discharge grouting assembly. Under the action of the piston cylinder, the grouting volume of the suction and discharge grouting assembly is controlled.

[0010] An oil lubrication assembly is provided between the piston cylinder and the suction and discharge grouting assembly, which lubricates the piston rods of the two piston assemblies in the suction and discharge grouting assembly that reciprocate.

[0011] Preferably, the suction and discharge grouting assembly includes two piston assemblies, and the piston rods of the two piston assemblies are connected to the piston rod of the piston cylinder through a mounting plate.

[0012] Preferably, the oil lubrication assembly includes an oil reservoir for storing lubricating oil; and two sets of threaded oil valves are installed in the oil reservoir, corresponding to the piston rods of the two piston assemblies in the suction and discharge grouting assembly, respectively.

[0013] Preferably, the drip pipes of the two sets of threaded oil valves extend from the bottom of the oil storage box, thereby lubricating the piston rods of the two piston assemblies in the suction and discharge grouting assembly with the lubricating oil in the oil storage box in an intermittent drip manner.

[0014] Preferably, the threaded oil valve is equipped with a threaded adjusting rod, and the oil dripping rate is adjusted by turning the threaded adjusting rod.

[0015] Preferably, the inlet of the multi-gear pump is connected to the return oil tank, and the discharge capacity of the multiple outlets of the multi-gear pump is arranged from large to small.

[0016] Preferably, the multiple outlets of the multi-gear pump are connected to the piston cylinder via hydraulic oil pipes, and a circuit solenoid valve is installed on each hydraulic oil pipe. The opening and closing of the circuit solenoid valves controls the amount of oil input from the multi-gear pump to the piston cylinder.

[0017] Preferably, when all the solenoid valves of the multiple outlet ports of the multi-gear pump are open, a large displacement of oil is input to the piston cylinder by controlling the speed of the power motor.

[0018] When the solenoid valve of the large-displacement outlet of the multi-gear pump is open and the solenoid valve of the small-displacement outlet is closed, the piston cylinder is fed with medium to large displacement oil by controlling the speed of the power motor.

[0019] When the solenoid valve of the small-displacement outlet of the multi-gear pump is open and the solenoid valve of the large-displacement outlet is closed, the piston cylinder is fed with oil of medium and small displacement by controlling the speed of the power motor.

[0020] Preferably, when the solenoid valve of any outlet of the multi-gear pump is closed, the hydraulic oil pumped by the multi-gear pump is introduced into the return oil tank through the corresponding hydraulic oil pipe.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] This stable hydraulic dual-liquid grouting pump achieves stable output of grouting volume, especially for small and medium displacement grouting pumps, through the combination of multi-gear pumps and multiple circuit solenoid valves, thereby improving the engineering quality of grouting operations. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of a stable hydraulic dual-liquid grouting pump provided by this utility model;

[0024] Figure 2 This is a first-view structural diagram of the internal structure of a stable hydraulic dual-liquid grouting pump provided by this utility model;

[0025] Figure 3 This is a structural schematic diagram of the internal structure of a stable hydraulic dual-liquid grouting pump provided by this utility model from a second perspective.

[0026] Figure 4 This is an internal top view of a stable hydraulic dual-liquid grouting pump provided by this utility model;

[0027] Figure 5 This is an internal front view of a stable hydraulic dual-liquid grouting pump provided by this utility model;

[0028] Figure 6 This is an internal rear view of a stable hydraulic dual-liquid grouting pump provided by this utility model;

[0029] Figure 7 This is a schematic diagram of the connection structure of the piston cylinder and the suction and discharge grouting assembly provided by this utility model;

[0030] Figure 8 This is a front sectional view of the piston cylinder and suction / discharge grouting assembly provided by this utility model;

[0031] Figure 9 This is a side sectional view of the piston cylinder and suction / discharge grouting assembly provided by this utility model.

[0032] In the diagram: 1. Power motor; 2. Multi-gear pump; 3. Reversing valve assembly; 4. Piston cylinder; 5. Suction and discharge grouting assembly; 6. Oil return tank; 7. Oil lubrication assembly; 701. Oil reservoir; 702. Threaded oil valve. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0034] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0036] This utility model provides a stable hydraulic dual-liquid grouting pump. Please refer to [link / reference]. Figure 1-6 The system includes a power motor 1, a multi-gear pump 2, a reversing valve group 3, a piston cylinder 4, and a suction and discharge grouting assembly 5. The multi-gear pump 2 has multiple outlets, which can output different displacements under the action of the power motor 1. The reversing valve group 3 is connected to the multiple outlets of the multi-gear pump 2 and the return oil tank 6 via hydraulic oil pipes. The piston cylinder 4 is connected to the reversing valve group 3 via hydraulic oil pipes, and the oil input of the piston cylinder 4 is controlled by the opening and closing of the solenoid valve in the reversing valve group 3. The piston rod of the piston cylinder 4 is connected to two piston assemblies in the suction and discharge grouting assembly 5, and the grouting volume of the suction and discharge grouting assembly 5 is controlled by the piston cylinder 4. An oil lubrication assembly 7 is provided between the piston cylinder 4 and the suction and discharge grouting assembly 5 to lubricate the reciprocating piston rods of the two piston assemblies in the suction and discharge grouting assembly 5.

[0037] Specifically, the suction and discharge grouting assembly 5 includes two piston assemblies, and the piston rods of the two piston assemblies are connected to the piston rod of the piston cylinder 4 through a mounting plate.

[0038] For further details, please refer to Figure 7-9 The oil lubrication assembly 7 includes an oil storage box 701 for storing lubricating oil; and two sets of threaded oil valves 702 are installed in the oil storage box 701, corresponding to the piston rods of the two piston assemblies in the suction and discharge grouting assembly 5 respectively.

[0039] Furthermore, the drip pipes of the two sets of threaded oil valves 702 extend from the bottom of the oil storage box 701, thereby lubricating the piston rods of the two piston assemblies in the suction and discharge grouting assembly 5 with the lubricating oil in the oil storage box 701 in an intermittent drip manner.

[0040] In this embodiment, the threaded oil valve 702 is equipped with a threaded adjusting rod, and the oil dripping rate is adjusted by turning the threaded adjusting rod.

[0041] In this embodiment, a cover is movably installed above the oil storage box 701, and lubricating oil can be added to the oil storage box 701 by opening the cover.

[0042] Specifically, the inlet of the multi-gear pump 2 is connected to the return oil tank 6, and the discharge capacity of the multiple outlets of the multi-gear pump 2 is arranged from large to small.

[0043] The multiple outlets of the multi-gear pump 2 are connected to the piston cylinder 4 via hydraulic oil pipes, and a circuit solenoid valve is installed on each hydraulic oil pipe. The opening and closing of the circuit solenoid valves controls the amount of oil input from the multi-gear pump 2 to the piston cylinder 4.

[0044] When all the solenoid valves of the multiple outlet ports of the multi-gear pump 2 are open, the piston cylinder 4 is fed with a large-displacement oil volume by controlling the speed of the power motor 1; when the solenoid valve of the large-displacement outlet of the multi-gear pump 2 is open and the solenoid valve of the small-displacement outlet is closed, the piston cylinder 4 is fed with a medium-to-large-displacement oil volume by controlling the speed of the power motor 1; when the solenoid valve of the small-displacement outlet of the multi-gear pump 2 is open and the solenoid valve of the large-displacement outlet is closed, the piston cylinder 4 is fed with a medium-to-small-displacement oil volume by controlling the speed of the power motor 1.

[0045] When the solenoid valve of any outlet of the multi-gear pump 2 is closed, the hydraulic oil pumped by the multi-gear pump 2 is introduced into the return oil tank 6 through the corresponding hydraulic oil pipe.

[0046] This stable hydraulic dual-liquid grouting pump achieves stable output of grouting volume, especially for small and medium displacement grouting pumps, through the combination of multi-gear pumps and multiple circuit solenoid valves, thereby improving the engineering quality of grouting operations.

[0047] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A stable hydraulic dual-liquid grouting pump, characterized in that, It includes a power motor (1), a multi-gear pump (2), a reversing valve group (3), a piston cylinder (4), and a suction and discharge grouting assembly (5); The multi-gear pump (2) corresponds to multiple liquid outlets. Under the action of the power motor (1), the multiple liquid outlets can achieve different discharge volumes. The reversing valve group (3) is connected to multiple outlets of the multi-gear pump (2) and the return tank (6) via hydraulic oil pipes. The piston cylinder (4) is connected to the reversing valve group (3) via a hydraulic oil pipe, and the oil input of the piston cylinder (4) is controlled by the opening and closing of the solenoid valve in the reversing valve group (3). The piston rod of the piston cylinder (4) is connected to two piston assemblies in the suction and discharge grouting assembly (5). Under the action of the piston cylinder (4), the grouting volume of the suction and discharge grouting assembly (5) is controlled. An oil lubrication assembly (7) is provided between the piston cylinder (4) and the suction and discharge grouting assembly (5), and the oil lubrication assembly (7) lubricates the piston rods of the two piston assemblies in the suction and discharge grouting assembly (5) that reciprocate.

2. The stable hydraulic dual-liquid grouting pump as described in claim 1, characterized in that, The suction and discharge grouting assembly (5) includes two piston assemblies, and the piston rods of the two piston assemblies are connected to the piston rod of the piston cylinder (4) through a mounting plate.

3. A stable hydraulic dual-liquid grouting pump as described in claim 2, characterized in that, The oil lubrication assembly (7) includes an oil reservoir (701) for storing lubricating oil; and two sets of threaded oil valves (702) are installed in the oil reservoir (701), which correspond to the piston rods of the two piston assemblies in the suction and discharge grouting assembly (5).

4. A stable hydraulic dual-liquid grouting pump as described in claim 3, characterized in that, The drip pipes of the two sets of threaded oil valves (702) extend from the bottom of the oil storage box (701), thereby lubricating the piston rods of the two piston assemblies in the suction and discharge grouting assembly (5) with the lubricating oil in the oil storage box (701) in an intermittent drip manner.

5. A stable hydraulic dual-liquid grouting pump as described in claim 4, characterized in that, The threaded oil valve (702) is equipped with a threaded adjusting rod, and the oil dripping rate can be adjusted by turning the threaded adjusting rod.

6. A stable hydraulic dual-liquid grouting pump as described in claim 1, characterized in that, The inlet of the multi-gear pump (2) is connected to the return oil tank (6), and the discharge capacity of the multiple outlets of the multi-gear pump (2) is arranged from large to small.

7. A stable hydraulic dual-liquid grouting pump as described in claim 6, characterized in that, The multiple outlets of the multi-gear pump (2) are connected to the piston cylinder (4) through hydraulic oil pipes, and a circuit solenoid valve is installed on each hydraulic oil pipe. The oil input of the multi-gear pump (2) to the piston cylinder (4) is controlled by opening and closing the circuit solenoid valve.

8. A stable hydraulic dual-liquid grouting pump as described in claim 7, characterized in that, When the solenoid valves of the multiple outlet ports of the multi-gear pump (2) are all open, the piston cylinder (4) is fed with a large displacement of oil by controlling the speed of the power motor (1). When the solenoid valve of the large displacement outlet of the multi-gear pump (2) is opened and the solenoid valve of the small displacement outlet is closed, the piston cylinder (4) is input with medium to large displacement oil by controlling the speed of the power motor (1). When the solenoid valve of the small displacement outlet of the multi-gear pump (2) is opened and the solenoid valve of the large displacement outlet is closed, the piston cylinder (4) is input with medium and small displacement oil by controlling the speed of the power motor (1).

9. A stable hydraulic dual-liquid grouting pump as described in claim 7, characterized in that, When the solenoid valve of any outlet of the multi-gear pump (2) is closed, the hydraulic oil pumped by the multi-gear pump (2) is introduced into the return oil tank (6) through the corresponding hydraulic oil pipe.

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